They were in my sight for more than 20 minutes, changed their position very frequently many times!!

I was flying at night coming back from Buckeye airport, just after i took off from the airport i saw 4 orange colour bright objects at 3'o clock position of my aircraft, I estimated that they are over Gilabend as i keep on flying to Buckeye very oftenly and familiar with the vicinity, they were in my sight for 20-25 minutes continuously changed their position, also kept on disappearing and appearing again and again.